Importnewbie

Hi, I am considering purchasing goods from China for onward sale in the UK. The seller in China has confirmed they can send DDP and for this reason the goods are more expensive to purchase. They have confirmed they will send these goods to a clearance company in the UK who will deal with the duty/vat and then deliver to me once cleared. The seller will only provide an invoice to me which shows how much I have paid for the goods and not any duty or vat that they or their clearance company have accounted for in the UK. I will not be VAT registered anytime soon so not worried about accounting for VAT. My question is; 1)As someone who has purchased goods under DDP terms am I then absolved of any responsibility of import duty and VAT or would I have to prove that Duty and VAT have been declared/paid if an enquiry is opened? 2)If there is more to consider please advise. Thank you